John Calvin on Exodus 29:28-35

28. And it shall be Aaron’s. Lest the dignity of the sacred offerings, which are called the holiness of the Lord, should be impaired, strangers are prohibited from partaking of them; for, if it had been permitted that every one should touch them and eat of them, there would have been no distinction between them and ordinary food. Of the priests’ portion some parts were common to all their families; but the holy parts were excepted, to the intent that by this particular instance the reverence due to all might be inculcated. The reference to place has the same object, for it was not lawful to eat what was holy within the walls of their houses, in order that it might be distinguished from their common and ordinary food. For the same reason, whatever remained of it was to be burnt, lest, if the flesh became rank, or the bread moldy, their ill savor and filthy appearance might somewhat detract from the dignity of the holy things; for the infirmity of the ancient people had need of childish rudiments, which might still have a tendency to elevate the minds of the pious to things above. This was the object of all these things, that no corruption should creep in which might pollute or render contemptible the service of God.

Leviticus 8

Leviticus 8:1-3

1. And the LORD spake unto Moses, saying,

1. Loquutus est deinde Jehova ad Mosen, dicendo:

2. Take Aaron and his sons with him, and the garments, and the anointing oil, and a bullock for the sin offering, and two rams, and a basket of unleavened bread;

2. Tolle Aharon et filios ejus cure illo, et vestes, et oleum unctionis, et juvencum sacrificii pro peccato: et duos arietes, et canistrum azymorum.

3. And gather thou all the congregation together unto the door of the tabernacle of the congregation.

3. Atque omnem coetum congrega ad ostium tabernaculi conventionis.